Recognition of non-native peacock bass, Cichla kelberi by native prey: testing the naiveté hypothesis

Kovalenko, Katya E.; Dibble, Eric D.; Agostinho, Ângelo Antônio; Pelicice, Fernando Mayer

doi:10.1007/s10530-010-9698-7

Cited by 30 publications

(29 citation statements)

References 45 publications

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“…Recent research demonstrates that naive prey do not respond consistently differently to, or suffer higher mortality from, non‐native predators (Rehage, Dunlop & Loftus, 2009; Kovalenko et al. , 2010).…”

Section: Introductionmentioning

confidence: 99%

Prey naivety in the behavioural responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to an invasive predator

Kuehne¹,

Olden²

2012

Freshwater Biology

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Summary 1. Non‐native predators might inflict proportionally higher mortality on prey that have no previous experience of them, compared to species that have coexisted with the predator for some time. 2. We tested whether juvenile Chinook salmon (Oncorhynchus tshawytscha) were less able to recognise a non‐native than a native predator, by investigating behavioural responses to the chemical cues of the invasive smallmouth bass (Micropterus dolomieu) and the native northern pikeminnow (Ptychocheilus oregonensis) in both laboratory and field experiments. 3. Laboratory results demonstrated strong innate antipredator responses of individual juvenile Chinook salmon to northern pikeminnow; fish spent 70% of time motionless and exhibited 100% greater panic response than in controls. By contrast, antipredator responses to the chemical cues of smallmouth bass did not differ from controls. 4. These results were supported by similar differences in recognition of these predator odours by groups of juvenile Chinook salmon in fully natural conditions, though responses reflected a greater range of antipredator behaviours by individuals. In field trials, responses to northern pikeminnow odour resulted in increased flight or absence, reductions in swimming and foraging, and increased time spent near the substratum, compared to smallmouth bass odour. 5. Given that survival of juvenile fish is facilitated by predator recognition, our results support the hypothesis that naivety may be an important factor determining the effect of non‐native predators on prey populations. Efforts to manage the effect of native and non‐native predators may benefit by considering complex behavioural interactions, such as these at the individual and group levels.

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Section: Introductionmentioning

confidence: 99%

Prey naivety in the behavioural responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to an invasive predator

Kuehne¹,

Olden²

2012

Freshwater Biology

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“…On the other hand, prey may recognize predators without prior exposure, what may explain induced habitat shifts in native prey (Galaxias auratus, Stuart-Smith et al, 2008). However, (Kovalenko et al, 2010) showed that prey naiveté might not be an important factor in the invasibility of peacock bass, since native prey could recognize Cichla kelberi as a predator, showing avoidance behavior. However, since prey was collected from the wild, and experiments were conducted in laboratory conditions, it is possible that prey might have previously encountered peacock bass and learned to avoid it, as pointed out by the authors (Kovalenko et al, 2010).…”

Section: Since Neutral Genetic Diversity Appear Unimportant In Cichlamentioning

confidence: 99%

“…in the invasive range (Itaipu hydroelectric reservoir and in the floodplain of the upper Paraná River) together with multiple introductions of Cichla species in the Paraná and Parapanema River basin was also reported (Oliveira et al, 2006). Several aspects of why Cichla's invisibility was so successful in Southeastern Brazil have been investigated, but no correlation with propagule pressure (Espinola et al, 2010) or with the prey naiveté hypothesis (i.e., prey are unable to recognize and respond to predators due to lack of previous ontogenetic contact to a sympatric predator (Kovalenko et al, 2010) have been found. In the latter work, the different co-evolutionary history with a certain predator archetype was not found to explain local extinctions after introduction of C. kelberi.…”

Section: Introductionmentioning

confidence: 99%

“…In the latter work, the different co-evolutionary history with a certain predator archetype was not found to explain local extinctions after introduction of C. kelberi. The latter was proposed based on behavioral experiments conducted in laboratory where non-native peacock bass could be recognized as a predator by native species (Kovalenko et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla)

et al. 2014

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An important step in invasive biology is to assess biological variables that could be used to predict invasion success. The study of genetics, evolution, and interactions of invasive and native species in invaded ranges provides a unique opportunity to study processes in population genetics and the capability of a species' range expansion. Here, we used information from microsatellite DNA markers to test if genetic variation relates to propagule pressure in the successful invasion of an apex predator (the Amazonian cichlid Cichla) into Southeastern Brazilian River systems. Invasive populations of Cichla have negatively impacted many freshwater communities in Southeastern Brazil since the 1960s. Reduction of genetic variation was observed in all invasive populations for both Cichla kelberi (CK) and Cichla piquiti (CP). For instance, heterozygosity was lower in the invasive range when compared to native populations from the Amazon basin (CP H E = 0.179/0.44; CK H E = 0.258/0.536 respectively). Therefore, despite the successful invasion of Cichla in southeast Brazil, low genetic diversity was observed in the introduced populations. We suggest that a combination of factors, such as Cichla's reproductive and feeding strategies, the "evolutionary trap" effect and the biotic resistance hypothesis, overcome their depauperete genetic diversity, being key aspects in this apex predator invasion.Uma importante etapa na biologia da invasão é acessar variáveis biológicas que podem predizer o sucesso de invasão. O estudo da genética, evolução e interações entre invasores e espécies nativas no ambiente invadido pode prover uma oportunidade única para o estudo dos processos em genética de populações e a capacidade de uma espécie ampliar seu habitat. Nesse trabalho, nos utilizamos dados de marcadores de DNA microssatélites para testar se a variação genética é relacionada a pressão de propágulo na invasão bem sucedida do predador de topo (o ciclídeo Amazônico Cichla) nos rios do Sudeste Brasileiro. Populações invasoras de Cichla vem impactando negativamente diversas comunidades de água doce no Sudeste brasileiro deste 1960. A redução da variação genética foi observada em todas populações invasoras, tanto para Cichla kelberi (CK) como Cichla piquiti (CP). Por exemplo, a heterozigose foi menor no ambiente invadido quando comparada com as populações nativas da bacia Amazônica (CP HE = 0.179/0.44; CK HE = 0.258/0.536 respectivamente). Assim, apesar do sucesso da invasão de Cichla no sudoeste do Brasil, baixa diversidade genética foi observada nas populações introduzidas. Nós sugerimos que uma combinação de fatores, como as estratégias reprodutivas de Cichla, o efeito de "armadilha evolutiva" e a hipótese de resistências biótica superam o efeito que a diversidade genética depauperada exerce, sendo aspectos-chave na invasão desse predador de topo de cadeia.

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“…The expectation is that due to a lack of shared evolutionary history, native prey are likely to have high naïveté to invasive predators (Cox and Lima, 2006). However, where invasive predators produce similar visual and/or chemical cues to native predators, prey can adaptively adjust their behavior and morphology in response to invasive predator presence (Kovalenko et al, 2010). Mothers are already known to alter offspring phenotype, via maternal effects, in direct response to predation pressure and cues of native predator presence (Storm and Lima, 2010); with these changes in offspring phenotype maximizing maternal reproductive success (e.g., Walsh et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Invasive Egg Predators and Food Availability Interactively Affect Maternal Investment in Egg Chemical Defense

et al. 2018

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Invasive species commonly predate the offspring of native species and eggs are the life stage most vulnerable to this predation. In many species with no maternal care, females can alter the phenotype of eggs to protect them, for instance through chemical defense. In ladybirds egg alkaloids deter predators, including invasive predatory species of ladybirds, but conversely may attract cannibals who benefit from the consumption of eggs with higher alkaloid levels. Invasive predators tend to be more abundant where resources are also abundant, but in high resource environments the maternal fitness benefits of sibling cannibalism are low. Consequently this presents a conflict for female ladybirds between the different factors that influence egg alkaloid level, as protecting her eggs from predators might come with the cost of inadvertently encouraging within-clutch cannibalism under circumstances where it is not beneficial. We investigated how the ladybird Adalia bipunctata addresses this trade-off experimentally, by measuring the quantity of alkaloids in eggs laid by ladybirds in environments that differed in levels of resource availability and perceived predation risk from an invasive predator Harmonia axyridis. Females did lay eggs with higher egg alkaloid levels under poor resource conditions, but only when predator cues were absent. The resulting negative correlation between egg number and egg alkaloid level under poor resource conditions indicates a trade-off between these two attributes of maternal investment, mediated by female response to offspring predation risk. This implies that selection pressures on mothers to adaptively adjust the risk of siblicide may outweigh the need to protect offspring from interspecific predation. Our results demonstrate that maternal effects are an important aspect of species' responses to invasive predators, and highlight the value of studying maternal effects in the context of the multifaceted environments in which they occur.

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Recognition of non-native peacock bass, Cichla kelberi by native prey: testing the naiveté hypothesis

Cited by 30 publications

References 45 publications

Prey naivety in the behavioural responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to an invasive predator

Prey naivety in the behavioural responses of juvenile Chinook salmon (Oncorhynchus tshawytscha) to an invasive predator

Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla)

Invasive Egg Predators and Food Availability Interactively Affect Maternal Investment in Egg Chemical Defense

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